This indicates an attack attempt to exploit an Information Disclosure vulnerability in Adobe Flash Player.
The vulnerability is due to a logic flaw in the application. A remote attacker can exploit this to gain unauthorized access to sensitive information via a crafted request.
Adobe Flash Player 220.127.116.11 and earlier versions for Windows and Macintosh
Adobe Flash Player 18.104.22.1684 and earlier versions for Linux
Adobe AIR 22.214.171.124 and earlier versions for Windows and Macintosh
Adobe AIR 126.96.36.199 SDK and earlier versions
Adobe AIR 188.8.131.52 SDK & Compiler and earlier versions
Adobe AIR 184.108.40.206 and earlier versions for Android
Information Disclosure: Remote attackers can gain sensitive information from vulnerable systems.
Apply the most recent upgrade or patch from the vendor.